Question

Q3.

(a) A tank containing methanol has walls 2.50 cm thick made of glass of refractive index 1.540. Light from the outside air strikes the glass at a 41.5° angle with the normal to the glass. Find the angle the light makes with the normal in the methanol. (The index of refraction of methanol is 1.329.)
________________________°

(b) The tank is emptied and refilled with an unknown liquid. If light incident at the same angle as in part (a) enters the liquid in the tank at an angle of 20.2° from the normal, what is the refractive index of the unknown liquid?
________________________

(c) Light traveling in water strikes a glass plate at an angle of incidence of 57.0°; part of the beam is reflected and part is refracted. If the reflected and refracted portions make an angle of 91.8° with each other, what is the index of refraction of the glass?

_______________________

please solve all parts of question 3

Answer 1

(a)

AIR to GLASS:

GLASS to METHANOL:

(Angle light makes with the normal in the methanol)

(b)

AIR to GLASS:

GLASS to UNKNOWN LIQUID:

(Refractive index of the liquid)

(c)